Atmel ATSAML22G16A-AUT, Manual

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25.12.11. Alarm Value in Clock/Calendar mode (CTRLA.MODE=2)
The 32-bit value of ALARM is continuously compared with the 32-bit CLOCK value, based on the
masking set by MASK.SEL. When a match occurs, the Alarm n interrupt flag in the Interrupt Flag Status
and Clear register (INTFLAG.ALARM) is set on the next counter cycle, and the counter is cleared if
CTRLA.MATCHCLR is '1'.
Name: ALARM
Offset: 0x20
Reset: 0x00000000
Property:
PAC Write-Protection, Write-Synchronized
Bit 31 30 29 28 27 26 25 24
YEAR[5:0] MONTH[3:2]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 23 22 21 20 19 18 17 16
MONTH[1:0] DAY[4:0] HOUR[4:4]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 15 14 13 12 11 10 9 8
HOUR[3:0] MINUTE[5:2]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
MINUTE[1:0] SECOND[5:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bits 31:26 – YEAR[5:0]: Year
The alarm year. Years are only matched if MASK.SEL is 6
Bits 25:22 – MONTH[3:0]: Month
The alarm month. Months are matched only if MASK.SEL is greater than 4.
Bits 21:17 – DAY[4:0]: Day
The alarm day. Days are matched only if MASK.SEL is greater than 3.
Bits 16:12 – HOUR[4:0]: Hour
The alarm hour. Hours are matched only if MASK.SEL is greater than 2.
Bits 11:6 – MINUTE[5:0]: Minute
The alarm minute. Minutes are matched only if MASK.SEL is greater than 1.
Bits 5:0 – SECOND[5:0]: Second
The alarm second. Seconds are matched only if MASK.SEL is greater than 0.
Atmel SAM L22G / L22J / L22N [DATASHEET]
Atmel-42402E-SAM L22G / L22J / L22N_Datasheet_Complete-07/2016
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